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com/ Keywords in this release: Location-based services, LBS, United States, average revenue per user, ARPU, assisted global positioning system, A-GPS, enhanced observed time difference, E-OTD, uplink time difference of arrival, U-TDOA, code-division multiple access, CDMA, advanced forward link trilateration, AFLT, Cell ID, mobile resource management, MRM, research, information, market, trends, technology, service, forecast, market share CONTACT: Mireya Castilla, Corporate Communications - North America, +1-210-247-3830, or fax, +1-210-348-1003, or mireya.
Recognizing the increase in LBS momentum and the need for improved positioning performance on mobile devices, Spirent Communications has expanded its LBS LTE test solution to support LTE Positioning Protocol (LPP) and Observed Time Difference of Arrival (OTDOA).
Within the current 3GPP standards, the E-OTD equivalent (known as Observed Time Difference of Arrival, OTDOA) is recognised as suffering from the issue of 'hearability', in which distant signals tend to be drowned out by nearby ones.
Examples of handset-based wireless location systems include Enhanced Global Positioning System such as Wireless Assisted GPS(TM) and Enhanced Observed Time Difference (E-OTD) such as Cursor(TM) .
Nokia's mPosition Solution With Nokia's mPosition solution for the Enhanced Observed Time Difference (E-OTD) location method, operators can differentiate their services and generate extra revenue from location-based applications.
The module supports the network-based location approach and provides accurate Enhanced Observed Time Difference (EOTD) and Observed Time Difference of Arrival (OTDOA) data that is critical for use in location determination in GSM and W-CDMA base stations.
Cursor(TM), based on the Enhanced Observed Time Difference (E-OTD) system, delivers high accuracy mobile location technology - up to 100 metres on GSM networks.
20, 2001 Nokia and Radiolinja, the Finnish mobile operator, have demonstrated good results in field trials using Nokia's enhanced observed time difference (E-OTD) positioning technology in Radiolinja's GSM900/1800 network - a breakthrough for E-OTD technology.